Installation GRS103
Release
01
03/2022
31
Figure 10: Supply voltage: Non-heating-appliance cable connection with built-in C14
plug (according to IEC 60320-1)
5.3.2 PoE supply voltage for M1-8TP-RJ45 PoE media
module
Figure 11: 3-pin terminal block for external PoE power supply
The PoE power is supplied via the wire pairs transmitting the signal
(Alternative A/phantom voltage).
The individual ports (joint PoE voltage) are not electrically insulated from
each other.
To supply the module with PoE voltage you need an external power supply
unit.
Make sure that the external power supply unit you use to provide the PoE
voltage fulfills the following basic prerequisites:
Insulation requirements according to IEEE 802.3af/IEEE 802.3at
(insulation resistance 48 V DC output to “rest of the world” 2250 V DC
for 1 minute).
Output power <124 W and sufficient to provide the power for the
connected PDs.
Current limitation <5 A or a 5 A slow blow fuse.
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